21813230

素因数分解:

$2^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{83}}^1\times {\mathrm{641}}^1$

素因数の和:772

約数の個数: 32

約数和(自身を含む): 40769568

約数和(自身を除く): 18956338

約数列:

[1, 2, 5, 10, 41, 82, 83, 166, 205, 410, 415, 641, 830, 1282, 3205, 3403, 6410, 6806, 17015, 26281, 34030, 52562, 53203, 106406, 131405, 262810, 266015, 532030, 2181323, 4362646, 10906615, 21813230]

約数ペア:

[(1, 21813230), (2, 10906615), (5, 4362646), (10, 2181323), (41, 532030), (82, 266015), (83, 262810), (166, 131405), (205, 106406), (410, 53203), (415, 52562), (641, 34030), (830, 26281), (1282, 17015), (3205, 6806), (3403, 6410)]